mathews



(No Model.) 2 Sheets-Sheet 1.

J. M. & R. P. MATHEWS. Pump.-

Patented Dec. 14, 188 0.

JVitnesses:

PET S PHD INUTON D 2 Shets-Sheet (No Model.)

J. M. & R. P.VMATHEWS.

Pump.

No. 235,547. Patented Dec. 14,1380.

Witnesses fiwx luventm-x;

NPETERS, PHOTo-LITHOGRAPHHI, WASHINGTON. 0.6.

UNITED STATES PATENT FFICE.

JAMES M. MATHEWS AND RUFUS P. MATHEWS, OF OVVATONNA, MlNN.

PUMP.

SPECIFICATION forming part of Letters Patent No. 235,547, dated December 14, 1880.

Application filed April 19, 1880.

To all whom it may concern Be it known that we, JAMES M. MATHEWS and RUFUS P. MATHEWS, citizens of the United States, residing at Owatonna, in the county of Steele and State of Minnesota, have invented certain new and useful Improvements in Pumps; and we do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of this specification.

The nature of our invention consists in the construction-and arrangement of a combined single and double'actin g pump, as will be hereinafter more fully set forth, and pointed out in the claims.

In the annexed drawings, to which reference is made, and which fully illustrates our invention, Figure 1 is a central vertical section of our pump. Fig. 2 is a side view of the upper portion of the pump. Fig. 3 is a central section of one of the pump-plungers. Fig. 4 is a side view of the operating lever or handle.

Figs. 5 and 6 are detailed views of connections used in the pump.

A represents the pump-cylinder, which is to be placed at any distance, but preferably about six feet, below the platform, and it is formed with two chambers, B B, for two pistons or plungers to work in said chambers, being inclined as shown in Fig.71-thatis, they diverge from the lower to the upper ends, and thepartition 0, between them, decreases gradually in thickness from top to bottom. The cylinder is preferably made of iron and held between heads or caps D D, which are secured together by bolts a. These heads or caps are provided with sockets E E. Into the top soeketis driven a wood pipe, F, which leads upward through the platform, to convey the Water and to form a support for the operating-lever. It has the usual nozzle or spout at F. Thepipe G is also of wood, and extends to the bottom of the well or below the water to conduct the water up to the cylinder, to which it'is attachedby being driven into the bottom socket, E. This pipe G has at its upper end the usual valve 9. The

I upper pipe, F, or socket E, is to be provided,

(No model.)

as at c, with a small vent, to allow the water to escape from the same when the pump is not used and during cold weather.

Between the two chambers B B of the cylinder, at the top, in the partition, is formed a V-shaped valve'chamber, b, with ports 6 6 leading into it from the pump-chambers; and in the bottom of said valve-chamberis, by means of a bolt or rivet, fastened a valve, cl, of leather or other suitable material, which valve vibrates alternately with the stroke of the operatinglever, opening and closing alternately the ports 6, through which the water is admitted from either chamber B in its passage upward to the pipe F.

The two chambers B B, flaring outwardly from the bottom up, will admit the upward increase of the thickness or width of the central partition, 0, between them, in which the valve d is hinged, and thus alford full space in the V-chamber, thus enlarged for the action of the said valve.

By simply disconnecting the top of the plunger-rod next to the operator one of the chambers B of the cylinder is closed by the vibrating valve, and we have a single-acting suction and force pump, the water being forced out the spout by the downward stroke of the lever.

The plunger in each chamber B is constructed, as shown in Fig. 3, in the following manner: H is a cast-iron head, into which is cast the iron piston-rod I, the head being formed with a concave or conical recess or hole, f. J J are valves, hinged in the middle and held to place by a shoulder and washer or a nut on the piston-rod. K is a concave circular ring with a cross-bar for valve-hinge, through which the lower end of the piston-rod passes. L is the leather packing, which is held in place by being pressed down intoa concave ring, M, by the convex outer surface of the ring- K, and fastened in place by a nut, h, on the lower end of the piston-rod as it passes through the cross-bar on the bottom ring, M, said ring being somewhat larger than the upper ring, K.

With the down motion of the plunger the valve f in the bottom of the pump-chamber is closed, and the water rushes up through the open valves J of the plunger and fills the chamber. When the plunger is drawn up ward the valves in it are closed and the water is forced upward through the V-shaped chamber I) into the pipe F and out at the spout. The valvesf at the bottom of the pinup-chambers B admit water alternately from the pipe G, the upper part of the bottom socket, E, being chambered out to cover both valve-seats.

The cylinder A, having its chamber flaring outward from the base up, not only enables us to effect a large economy of material in the structure, but gives such reduced size at the base of the two chambers that at this point the cylinder is united to a single pipe and comes directly over the central inlet-pipe, and, without the intervention of any number of chambers, will take the water at once and in a straight course from the inlet-pipe into either chamber.

It will also be observed that the flow of water, from the moment it enters the inlet till it is discharged through either cylinder. is in a very nearly direct upward course. This directness and comparative straightness in these passages add in the largest degree to the efficiency in the operation of our pump.

Each piston-rod I is attached to a rod, N, by means of a cheek-plate, O, on each side, said plates being fastened to the connectingrod N, and provided with cones i, which fit into the conical recess as in the head H of the piston-rod. The rod N is,at its upper end,by similar plates 0 and cones, connected with the operating-lever P. The upper end of the pipe F is closed, said pipe thus forming an airchamber above the spout for engaging the flow of water.

On opposite sides of the pipe F are fastened iron plates R, constructed substantially as shown in Fig. 5, and extendinga suitable distance above the pipe. These plates are provided with conical projections m m, which fit into corresponding sockets or recesses 19 on opposite sides of the handle or lever P. A wooden cap, S, rests on top of the plates, and is fastened by screws. '11 is a tie-bolt, which holds the plates together, and by tightening said bolt the wear of the parts can be easily taken up. It will thus be seen that the fulcrum of the handle or lever, as well as the joints between the connecting-rods N, the lever, and the piston-rods I are all formed of cones or conical projections and corresponding recesses, which render them easily working, and admits of the wear being taken up without trouble.

In the construction of this pump it will be noticed that While the two inclined pumpchambers are used the inlet and discharge pipes are located centrally and in a straight line, which renders the flow of water easy and free from unnecessary friction.

Our pump is single and double acting combined,and either chamber can be used independent of the other or together.

It will, of course, be understood that this device can be easily used as a fire-engine.

Having thus described our invention, what we claim as new, and desire to secure by Letters Patent, is

1. The combination of a cylinder, A, consisting of the double chamber B, flaring outwardly from the base up, and having the V- chamber anditsvalve between said chambers at their upper ends, the heads or caps D, with the upper and lower sockets, E, and inlet and outlet pipes, G and F, said pipes being located centrally and on line with each other, substantially as described.

2. The plates 0, provided with cones i, in combination with the connecting-rods -N, recessed handle I, and recessed heads H, of the piston-rods I, substantially as described.

'3. The plates It, provided with cones m, tiebolt 41, in combination with the recessed handle P and a pump-stock, substantially as and for the purposes set forth.

4. In a pump, substantially as described, the flaring chambers B B, having a partition, 0, between them increasing in thickness upward, and having a wide V-shaped valvechamber in its upper end, substantially as described.

In testimony whereof we affix our signatures in presence of two witnesses.

JAMES MONROE MATHEWS. RUFUS PARKER MATHEWS.

Witnesses:

L. O. JOHNSON, J. NEwsALT. 

